Gaurang Chotliya, Khushbu Bhatt, and N. B. Parmar. 2017. “A Laboratory Study of Thickness Design of Flexible Pavement by the CONSOLID System in Black Cotton Soil”. International Journal of Advance Engineering and Research Development (IJAERD) 4 (5):876-80. https://ijaerd.org/index.php/IJAERD/article/view/2402.